His performance against Kenobi wasn't as impressive as you're making it out to be. His two blows against Kenobi (a kick and a punch) were done early in the fight before Kenobi got himself situation in a defensive position. The text even made note that Kenobi then deflected everything Hett had to offer, and would have presumably done so with ease if not for the environment they were fighting in. When Kenobi realized he was fighting for Luke, he quickly ended the fight, and that was that. I don't see how briefly fighting Yuuzhan Vong warriors, training under a Sith sorcerer on Korriban, and fighting unknown opponents on unknown worlds translates to anything that then puts him beyond Revan.
And Revan's battle precognotion isn't Force-based. It's derived from his mastery over the Echani arts and reinforced by his dominance in the fields of psychological and conventional warfare. Add that onto his Force-based precognotion, which should be on parity with Krayt, and he's the obvious superior in that department.
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Vader's opinion is blatantly biased and irrelevant. Vader's strongest relevant telekinetic showing is Force pushing Marek and Tano, which isn't a drastic difference from Skywalker pushing Dooku in the RotS comic. Plus, I recall in LotS that Palpatine was reserving his power. Also, you label Drallig as featless, but what has Marek ever shown other than being humiliated by Ti? And Dooku got tired because of Skywalker's domination of him. That was the entire point.